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Samsung HDJ753LJ Explanation!

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speedfreakz

Post subject: Samsung HDJ753LJ Explanation!

Posted: January 26th, 2010, 12:44

Joined: January 26th, 2010, 11:49
Posts: 9
Location: Novi Sad Serbia

I read a few topics from other users who had similliar problem like me on the forum!
My problem is similliar to this >>
samsung-hd753lj-power-surge-t11606.html
fan-mod-may-have-killed-disk-t13277.html#p86977

My samsung hdd just stoped working after i plugged on Manhattan sata quick dock!
Actually i bought that and they didnt give me the adapter,so i used adapter from my w lan aolynk,and when i connected my hdd to the dock,a little bit of smoke just come from my hdd!
Now,my question is can someone just explain how to remove TVS from my hdd and when i remove it what do i do next!..and how can i seperate the electronical part of my hard disk from the other so i can do that!
I am not electronics technician,and i dont have a money for it right now,and i wanna do this on my own!
I am new to this forum,my English is not good,sorry about that!
Greetings from Serbia!

Photos>

My hard disk!
http://img691.imageshack.us/i/dscf0059f.jpg/
http://img687.imageshack.us/i/dscf0064wf.jpg/
http://img11.imageshack.us/i/dscf0055gh.jpg/

And here the dock that caused problems!
http://img39.imageshack.us/i/dscf0071z.jpg/
http://img39.imageshack.us/i/dscf0068tn.jpg/
http://img11.imageshack.us/i/dscf0067b.jpg/

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fzabkar

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 27th, 2010, 17:18

Joined: September 8th, 2009, 18:21
Posts: 17230
Location: Australia

Here are direct links to your photos (avoids banner ads, popups, etc):

http://img691.imageshack.us/img691/2433/dscf0059f.jpg
http://img11.imageshack.us/img11/6796/dscf0055gh.jpg
http://img687.imageshack.us/img687/9103/dscf0064wf.jpg
http://img39.imageshack.us/img39/4593/dscf0071z.jpg
http://img39.imageshack.us/img39/390/dscf0068tn.jpg
http://img11.imageshack.us/img11/1134/dscf0067b.jpg

The two TVS diodes are highlighted here:
http://www.users.on.net/~fzabkar/TVS.jpg

The one on the right appears to be the 12V diode and is the most likely culprit.

Here is the pinout of the SATA power connector:
http://pinouts.ru/Power/sata-power_pinout.shtml

You can remove the faulty diode(s) by desoldering it, or by snipping its pins with side cutters.

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speedfreakz

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 29th, 2010, 10:33

Joined: January 26th, 2010, 11:49
Posts: 9
Location: Novi Sad Serbia

ok..thanks my friend!
i checked the diodes and the dead one is the left one!
it says 00.7
and another is 282
!
so after i remove the diode,should i desolder left and right side of the pin on the hard disk to each other,or just leave it like that??

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poehere

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 29th, 2010, 13:06

Joined: February 27th, 2009, 3:26
Posts: 1721
Location: French Polynesia Tahiti

Just remove it. Then your drive is not protected be careful when plugging it back in. If this works get your data and RMA the drive. If it does not work take it in to a DR company becasue you have more problems with the PCB or could be internal to the drive and the preamp is also burned. If this happens it is not a DYI job for you to handle and a pro needs to do it for you.

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speedfreakz

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 29th, 2010, 13:16

Joined: January 26th, 2010, 11:49
Posts: 9
Location: Novi Sad Serbia

i just removed both diodes ,and connect hdd to my pc,and it dodnt help!
Hdd still looks dead!
now i really dont know what to do!..
anyway is there a chance to find that part what i need anywhere?
damn,my whole life is in that hard disc!

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poehere

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 29th, 2010, 13:20

Joined: February 27th, 2009, 3:26
Posts: 1721
Location: French Polynesia Tahiti

Now it is beyond you to fix this drive. If you take it to a shop they will be able to recover your data for you and the price should be reasonable. Without the proper tools to work on this drive you will not get back your data. You still have a good chance to get it back with the right shop. Just removing the TVS will not increase the price of your repair. If you continue on with DYI it will increase the price of your repair and you will pay 3 to 4x's more for this job. Search here on the forum for somene in your area and send him the drive and let him fix it for you and get back your data.

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speedfreakz

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 29th, 2010, 13:28

Joined: January 26th, 2010, 11:49
Posts: 9
Location: Novi Sad Serbia

hmm..i have brother in the Germany,and i saw on ebay a new hard disk like mine for 60euros...what if i buy a new one and change the whole electronical part?? do you think that can save the situation??
and is it hard to change that electronical part?

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speedfreakz

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 29th, 2010, 15:03

Joined: January 26th, 2010, 11:49
Posts: 9
Location: Novi Sad Serbia

anyway i found this ,someone had the same problem>>

Quote:

Recently I bought 3 Samsung F1 750GB drives (HD753LJ). First one and 2 weeks later 2 more. They all worked perfectly, until I mounted them into an IcyDock 5-in-3 SATA backplane module. At first only one of the drives was recognized, later none at all. Other drives work without problem in the module.

When I tried hooking up the 3 Samsungs apart from the module (= directly to the mainboard), they all appear to be dead. They don't even start to spin-up, no matter what I try: connecting with/without sata-data-cable, in a sata-usb docking station.

Is it possible for three drives to die at the same time? Is there anything else I could/should try? Any chance of recovering my data before I RMA them would be great.

As a last resort, I've tried taking the pcb off of a new drive and installed it on a broken one. Result: drive works perfectly (before that, it wouldn't even spin-up).

I hope Samsung will be kind enough to send me a couple new pcb's ;-)

jeeeej//:D i;ll buy a new one,and change the PCB..so now i need any instruction how to do that.!
Is it hard to change it?

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fzabkar

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 29th, 2010, 15:43

Joined: September 8th, 2009, 18:21
Posts: 17230
Location: Australia

speedfreakz wrote:

i;ll buy a new one,and change the PCB..so now i need any instruction how to do that.!
Is it hard to change it?

Before you buy anything, can you show us a close-up photo of the area around the diodes? The device to the left of the faulty diode may be a fuse. If so, then you can replace it with a 2A picofuse, or just bridge it with a wire.

Otherwise, if you need to replace the board, remove the 6 Torx screws. Then take care not to damage the flexible PCB at the spindle motor. I don't know what kind of connector is used, but some have a sliding plastic locking tab. This must be released, after which the flex cable can be withdrawn with very little effort.

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rameez

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 30th, 2010, 2:39

Joined: June 27th, 2006, 11:33
Posts: 2288
Location: In ur HDD !

You may have to change ROM in order to match another pcb with your drive and ROM is in BGA , which is PITA .

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speedfreakz

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 30th, 2010, 12:02

Joined: January 26th, 2010, 11:49
Posts: 9
Location: Novi Sad Serbia

ok..thank you for your patience,and your will for helping me to solve this!
here are the pictures>>

http://img202.imageshack.us/img202/6269/dscf0081c.jpg
http://img192.imageshack.us/img192/7413/dscf0076b.jpg
http://img709.imageshack.us/img709/4225/dscf0075y.jpg
http://img99.imageshack.us/img99/6606/dscf0072x.jpg

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pepe

Post subject: Re: Samsung HDJ753LJ Explanation!

Posted: January 30th, 2010, 21:22

Joined: October 3rd, 2005, 0:40
Posts: 4816
Location: Hungary

Hi,

U may contact HelpDisc, he should be able to help you in Serbia.

regards,
pepe

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